Auditors do not rely only on vouchers and confirmations. They also rely on embedded in financial data. SA 520 governs the use of in an audit.
This article explains .
Financial statements are not just a collection of numbers. They tell a .
Analytical procedures help auditors:
Understand that story Identify unusual movements Detect potential misstatements Unexpected trends often become starting points for detailed audit testing.
The objective of SA 520 is to require auditors to:
Use analytical procedures at appropriate stages of audit Identify relationships and trends that may indicate risk Support audit conclusions through data-driven analysis Analytical procedures complement, but do not replace, other audit procedures.
Analytical procedures involve:
Evaluation of financial information Through analysis of plausible relationships Between financial and non-financial data They are based on the premise that .
Auditors commonly use:
Trend analysis (year-on-year comparison) Ratio analysis (margins, turnover ratios) Reasonableness tests Comparison with budgets, forecasts, or industry data Each type serves a different audit purpose.
To understand business and performance trends To identify areas of potential risk As substantive analytical procedures To reduce detailed testing where results are predictable To assess whether financial statements are consistent with auditor’s understanding Analytical procedures influence both audit scope and depth.
Reliability depends on:
Quality of underlying data Predictability of relationships Level of aggregation Analytical procedures are more reliable when:
Controls are strong Data is consistent and complete Auditors form expectations based on:
Prior period results Business understanding External factors Significant deviations require:
Investigation Explanation Corroborative evidence Explanations without evidence are insufficient.
Common audit analytics include:
Gross margin comparison Expense-to-revenue ratios Payroll cost vs headcount Inventory turnover trends Receivables ageing movement These analytics often highlight hidden issues.
Management unaware of abnormal trends Inability to explain variances Over-reliance on “business reasons” without evidence Inconsistent explanations across periods Poor variance explanations increase audit risk perception.
To manage analytical procedures effectively:
Review key ratios periodically Understand drivers of variances Document explanations with evidence Align MIS with financial statements Proactive analysis reduces audit friction.